Hi Mark, Matt. 24:22 speaks of the "elect" which I'm assuming you mean by chosen. 1Peter. 1:1-2 (NIV)defines them for us: "Peter, an apostle of Jesus Christ, To God’s elect, strangers in the world, scattered throughout Pontus, Galatia, Cappadocia, Asia and Bithynia, [sup]2 [/sup]who have been chosen according to the foreknowledge of God the Father, through the sanctifying work of the Spirit, for obedience to Jesus Christ and sprinkling by his blood.
The gathering of the nations (all human survivors after Armageddon) in Matt. 25 is for the sheep and goat judgment (believers have previously been gathered at the rapture and judged between the timing of the rapture and when Christ's 2nd physical advent occurs). They will be judged according to the parameters of Matt. 25:35-36. The human Israeli and Gentile sheep shall be allowed to enter the millennium, the goats won't.
well what do ya know, kaotic and I actually agree on a small point of prophecy. ;)